Rotary wood-planing device.



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m. Meo/4 )www WILLIAM D.` PLUE, OF RAINIER, OREGON.

ROTARY WOOD-PLANING DEVICE.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed March 23,1906. Serial No. 307.639.

To all whom, it may concern:

Be it known that I, WILLIAM D. PLUE, a citizen of the United States,residing at Rainier, in the county of Columbia and State of Oregon, haveinvented certain new and useful Improvements in Rotary I/Vood-PlaningDevices, of which the following is a specification, reference being hadtherein to the accompanying drawings, in whichd Figure l is a frontelevation of devices embodying my invention. Figs. 2 and 3,respectively, are end and cross-sectional views of the same. Fig. 4 is aperspective view of a hook suitable for withdrawing the severalcutter-knives from the head.

The object of the invention is the improveent in the cutters and theheads therefor of wood-planing machines, and to this end consists in thenovel construction and combination of parts, as will be hereinafterdescribed, and pointed out in the appended claims.

In the drawings, A designates a cutterhead or cylinder for aplaning-machine and is formed with or mounted upon an aXially-disposeddriving-arbor B. Provided in the periphery of said head is a number ofslots C, extending spirally the entire length thereof and adapted toreceive the cutterknives D. These knives are of relatively thin steelblades and are each provided, desirably, with oppositely-disposedbeveled cutting edges E. The knives are retained in the respective saidslots by means of metal strips or keys, such as F, which are insertedendwise into registering grooves II and I, respectively, in the opposingfaces of the slots and knives. The groove in each of the knives isarranged centrally thereof to make the latter reversible and also toprevent the cutting edge, w 'ch is within a socket, from contacting withthe bottom of its slot.

rIhe knives and keys after being respectively seated and engaged aresecure against longitudinal dis lacement by means of covering-plates K,w ich are held against the ends of the head by any suitable means, suchas nuts L, which are screwed upon threads provided therefor on thearbor. One or both of these covering-plates are provided with spacedcut-away portions K', which are disposed in such a relation as to becapable of being brought opposite the adjacent ends of the slots C bygiving the plate or plates a partial rotation and which can beaccomplished after loosening the respective said securing-nuts. When theends of the said slots are thus exposed, the cutter-knives may beconveinently drawn out of the slots by mea'ns of hook I), insertedthrough the notches S and engaging each knife in an aperture R provided.rIhe periphery of the -head in advance of the several knife-slots isadvantageously recessed, as at M, for the purpose of providing for theturning of the chips as they are severed from the work. While the keysare preferably made with a circular cross-section, as shown in FigS, Ido not wish it to be understood as confining myself to such specificconstruction, as other forns may obviously be utilized for the same ens.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

l. The combination of a cutter-head provided in its periphery with aplurality of spirally-arranged slots, knives adapted to be seated insaid slots, means to key the said knives in their respective slots, andcoveringplates adapted to be secured against the ends of the head forpreventing the displacement of the said knives and said means to key theknives.

2. The combination of a cutter-head provided in its periphery with aplurality of spirally-arranged slots, knives having oppositely-disposedcutting edges and adapted to be seated in said slots, means to key thesaid knives in their respective slots, and coveringplates adapted to besecured against the ends of the headfor preventing the displacement ofthe said knives and said means to key the knives.

3. The combination of a cutter-head provided in its periphery with aplurality of sp1- rally-arranged slots, knives adapted to be seated insaid slots, a strip for each knife and adapted to secure the same byengaging in a groove therein and also in the opposing face of therespective slot, and covering-plates provided with spaced cut-awayportions adapted to register with the ends of said knives and strips andadapted to be secured against the l ends of the head for preventing thedisplacement of the said knives and strips.

4. The combination with the cutter-head. provided with spirally-arrangedperipheral slots, of knives adapted to be seated in said slots and eachprovided with an aperture in proximity to one of its ends, means forsecuring said knives in place against accidental IOO IIO

displacement, and means engageable in the said apertures for withdrawingthe knives from their respective said slots.

5. A cutter-head having peripheral slots, knives seated in said slots,keys to secure said knives, plates secured against the head. ends toengage the ends of the knives, said plates each having cut-away portionsspaced at intervals whereby when said plates are -ro- .tated all of said`knives will have their ends exposed.

6. A cutterhead having yperipheral slots, an arbor for said head, knivesseated `in said slots, keys .to secure the knives, plates yhaving spacednotches about their plates having their portions between said notchesfor engagement with the knife ends and adapted when rotated to have allof the knife ends register with said notches, and

nuts on the arbor engaging said plates and zo retaining the same inengagement with the ends of the head.

In testimony whereof I aHiX my signature in presence of two witnesses.

WILLIAM D. PLUE. Witnesses T. E. HUGHEs, W. F. CAssrDY.

periphery, said r 5

